755 prompts matching "Checking the solution of three equations by substitution"
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Distinguishing rational and irrational numbers
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Explaining why we rationalise denominators
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Proper subsets versus subsets
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Finding a sequence's sum between two term numbers
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Condition for two lines to be parallel
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Perpendicular from a point to a line
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Coordinate geometry exam question: quadrilateral vertices
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Distinguishing gradient sign: positive, negative, zero, undefined
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Coordinate geometry applied to a triangle's area check
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Common sign errors in algebraic manipulation
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Negative indices in algebraic fractions
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Fractional indices with numerator above 1
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Simplifying a mixed index expression
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Standard form calculations using indices
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Evaluating a negative fractional index
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Solving 9^x x 3^(x+1) = 1
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Index laws with an unknown letter base
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Simplifying an algebraic fraction with index rules
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Simplifying indices before adding like terms
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Multi-part index exam question with a real context
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